Underframe for cars and tenders.



W. D. LOWRY.

UNDERFRAME FOR CARS AND TENDERS.

APPLIOATION FILED JULY 11,1908.

Patented May 25, 1909.

2 SHEETEFSHEBI 1.

W. D. LOWRY.

UNDERPRAME FOR CARS AND TENDERS.

APPLICATION FILED JULY 11,1908.

Patented May 25, 1909.

2 slums-8mm z.

enrirnn snare WILLIAM D LOWRY, or sr. LOUIS,

WDERFRAME FQR CARE AND TENDERS.

No. scenes.

Specification of Letters Patent.

".pplicaticn filed Jul 11, lacs.

7 l l l A further object of the invention is to prc- E vide the underfran'ie with roller side bearings of novel construction and which are utilized also to space and assist in. securing in position the sections oi the transverse members with which they are associated.

In the accompanying drawings illustratingone embodimentof the invention Figure 1 is a plan view of the underfran'ie. Fig. 2 is a longitudinal sectional view on the line 2-2 of Fig. Fig. 3 is a sectional view on the line 3 3 of Fig. 1 and showing aside bcarin Fig. t is a sectional view similar to Fig. :5 but ing. views on the lines 55 and 66, respectively, of l igs. 1 and 2. Fig. 7 is a detail plan view of a portion of the center sill. Fig. 8 is a detail planview of a pair of sections.

- My invention may be variously embodied with side sills and end sills of diii'erent constructions. In the drawings 1 have shown cast steel end sills f) and transverse Z-bar side sills 10, the latter carrying the wood side sills 10.

The center sill 11 preferably comprises a single steel casting extending from one end sill to the other, but it may be made in sections if desired. I prefer to maker-he center sill of inverted U-shape, as shown, with integral center bearings 12 but the particular form of the center sill is not an essential part I transverse members oi the undcrl'rame are of the invention.

Transverse members of the underframe, which comprise what are commonly called the body bolsters and cross ties or needle beams, are made in sections andsecured to thecenter sill and sidesills. These sections are made alike so that one pattern can do showing a diilerent form of side bear- Figs. 5 and 6 are transverse sectional heath the h ss Patented. May 25, 1969.

Serial He. seems.

for all and each transverse member coin-- prises four sections, two on eacn. side ol the center sill and the sections of eacn pair are spaced apart and rigidly secured as hereinafter described.

which. may extend from end. center sill to The center sill is pro'i-o' side lugs ii at its top and tween it are provi T he center sill is prm'ide'd at l'ujitteni with outwardly pro ecting side iiansge; l3

L not sections 3 shown in. .3 sections and. the fastened to (Fig. l' the npper recer holster sect top of the es A. cover p h hit across the ccntc' Sill i'o tand is fastened to l ill S and the diner ends of the sections 1 vets or bolts. l may make the cross 1 l t es of a 'ilurality ol" sections like the body bolsters but this is not absolutely essential and t be madc in a diiit'erent manner if desired. ilowever. I prefer to make each cross tie, and many may be used as found desirable, of four sections 17 similar to the sections l 5 of the body bolsters and secured. at their outer ends to the side sills and at their inner ends to the lugs l l and 1e i 6). These cross tie sections are also chest at l? to receive the lugs 14 and cover plates 18 like the cover plates 1 6 on the body bolsters are also pro vidcd.

The sections of each pair in the several rev m preferably connected between their ends to brace and strengthen and hold them properly, spaced apart. The sections 17 of the cross ties may thus be connected by plates or bars iii of any suitable size and shape (Fig. 1). I prefer, however, to make the connections between the sections of eachpair comprising the body bolsters in the form of side bearings,

and each may consist of a plate or bar shaped as shownin Fig. 4 to make a side bearing for the under rame. However, I

prefer to provide a roller side bearing and this may consist of'a steel casting 21 provided with end lugs 21 to receive the rivets or bolts whereby the bearing casti'ngis fas-. tened to the sections 15. This bearing casting has a transverse central opening 22 of the general shape of an inverted triangle. A

roller 23 is housed within the bearing casting and is inserted through a slot 24 in the bottom thereof and afterward is provided with .mg, the axle then traveling on the inclined walls 22. Either the side bearing 20, shown in Fig. 4, or the roller side bearing, shown in' Fig. 3, may be used in. my improved underframe or any other form ,of side bearing adaptable to the underframe may be used. The side bearing spaces the sections the proper distance apart and stifiens and strengthens the same. The transverse member sections 15 and 17 maybe made in any suitable shape but I prefer to make them in a the general form illustrated in the drawings for they can then be cast without the use of a core. These sections may be provided with lugs 25 to support the stringers 26. Diagonal braces 27 may be provided at the ends of the underframe if desired. The preferred. form of the transverse members is that of a p channel with closedends as'illustrated and I each member comprises a to 28, a bottom 29, a side and ends F51 anc 32, all cast in one piece.

My improved underframe is simple in con.-

struction' and the cost of manufacture is considerably reduced by reason of the simplicity in the form and construction and particularly because the -parts are of standard size and shape. This enables the cast parts made with but few patterns and without the use of cores. alike of one pattern,

the sections of the body bolstersare made alike from one ferred fornr illustrated, is a single casting.

section may be used in any transverse member within the underframe.

to be 1 Thus the end sills are made attern, the

side sills are made alike of rolle pressed or cast metal and the center sill, in the preing and having a bearing against the top of The fact that all of the transverse member I sections are made alike is of material importance in the matter of repairs for a single ,What' I claim and desire .to secure by Letters Patent is:

1.. In an underframe made in inverted U-shape in cross sect-ion, a center bearing integral with said'centersill, and a transverse member comprising two pairs of oppositely disposed cast steel sections secured at their inner ends to the center sill and arranged on opposite sides of said center bearing. A

2. In an underframe for cars and tenders, the combination of a center sill,'-side flanges and side lugs on the center sill, and a transverse member comprising two pairs of opipm sitely disposed cast steel sections secure at their inner ends to said lugs and flanges.

3. In an underframe for cars and tenders,

the combination of a cast steel center sill,-

side lugs on the center sill and integral therewith, and' a transverse member comprising two pairs of oppositely disposed cast stee sections secured at their inner ends to the center sill between said lugs.

4. In an underframe for cars and tenders, the combination of a cast steel center sill,

for cars and tenders, the combination of a cast steel center sill.

side lugs on the center sill integral therewith at the top thereof, a transverse member comprising two pairs of oppositely disposed cast steel sections secured at their inner ends to the center sill beneath said lugs, said sections being oifset to receive said lugs, and a cover plate extending across the center sill and over a air of oppositely located lugs and secured t .iereto.

5. In an underframe for cars and tenders, a transverse member comprising .two pairs of separate cast-steel sections, the'sections in each pair being spaced aart, and a roller bearing connected to see and located therebetween.

6. In an. underframe for cars and tenders, a transverse member comprising two pairs of separate cast steel sections, the sections in pair of sections each pair being spaced apart, and a roller bearing comprising a casting fastened to each pair of sections and having a transverse opening therein, and a roller loosely arranged in said opening and having a bearing against the top of the casting.

7. In an underirame for cars and tenders, a transverse member comprising two pairs of separate cast steel sections, the sections in each pair being spaced apart, and a roller bearing comprising a casting fastened to.

each pair of sections and having a transverse opening of generally inverted triangular s rape, a roller loosely arranged in said open- E a transverse member comprising two pairs of separate cast steel sections, the sections in each pair being spaced apart, and a roller I slot and opening, said roller having a bearing bearing comprisin acasting fastened to each against the top of the casting, and an axle 1o pair of sections an haw iing a transverse open- I projecting from both sides of the roller.

ing therein of general y inverts triangu a1- 7 shape, a slot in the bottom of the casting WHJLIAM communicating with said opening, a roller adapted to be inserted through said slot into the opening and to Work loosely in said Witnesses ROSA Ross, JAMES HAY ARD. 

